pcap_geterr(3)

pcap_geterr3

Get or print libpcap error message text

Usage

#include <pcap/pcap.h>

char *pcap_geterr(pcap_t *p); void pcap_perror(pcap_t *p, const char *prefix);

Overview

pcap_geterr() returns the error text pertaining to the last pcap library error. NOTE: the pointer it returns will no longer point to a valid error message string after the pcap_t passed to it is closed; you must use or copy the string before closing the pcap_t.

pcap_perror() prints the text of the last pcap library error on stderr, prefixed by prefix.

Releases

39 releases since FreeBSD 8.0-RELEASE; the text changed 7 times.

  1. 8.0–8.4
  2. 9.0–10.4
  3. 11.0
  4. 11.1–11.3
  5. 11.4
  6. 12.0–12.1
  7. 12.2–13.4
  8. 13.5–16.0

From base 16.0-CURRENT-20261027-61c70dc16a79 in FreeBSD 16.0-CURRENT (2026-10-27). Parsed by carta from the page's man source.